ASVAB Practice Test B

PART 1: GENERAL SCIENCE (GS)

11 Minutes 25 Questions

  1. Directions: In this section, you will be tested on your knowledge of concepts in science generally reviewed in high school. For each question, select the best answer and mark the corresponding oval on your answer sheet.

  2. Those wishing to reduce the “bad” cholesterol levels in their blood should avoid

    1. polyunsaturated fats
    2. carbohydrates
    3. monounsaturated fats
    4. saturated fats

  3. Water at sea level freezes at what temperature?

    1. 373 K
    2. 0°F
    3. 100°C
    4. 32°F

  4. Which of the following subatomic particles has the largest mass?

    1. proton
    2. electron
    3. positron
    4. neutrino

  5. Which of the following is an example of an autotroph?

    1. a vulture
    2. an apple tree
    3. a toadstool
    4. a sea anemone

  6. The period from 4.6 billion years to 570 million years ago is called the

    1. Phanerozoic eon
    2. Mesozoic era
    3. Paleozoic era
    4. Precambrian eon

  7. Which of the following planets is larger than Earth?

    1. Mars
    2. Mercury
    3. Uranus
    4. Venus

  8. When these fall into the Earth’s gravitational field, they are seen as “falling stars.”

    1. asteroids
    2. meteoroids
    3. comets
    4. craters

  9. The study of interactions between organisms and their interrelationships with the physical environment is known as

    1. cytology
    2. ecology
    3. physiology
    4. embryology

  10. Most absorption of nutrients from food happens in the human body’s

    1. stomach
    2. pylorus
    3. small intestine
    4. large intestine

  11. High tide occurs

    1. four times a year
    2. once a day
    3. once a year
    4. twice a day

  12. Which is NOT a fact according to Newton’s Law of Gravitation?

    1. If the mass of the Earth were doubled, the gravitational force on the Earth would double.
    2. The force exerted on the Earth by the Sun is equal and opposite to the force exerted on the Sun by the Earth.
    3. If the mass of the Earth were doubled, the gravitational force on the Earth would quadruple.
    4. If the mass of the Sun were doubled, the force it exerts on the Earth would double.

  13. Which of the following types of electromagnetic radiation has the longest wavelength and lowest frequency?

    1. radio waves
    2. microwaves
    3. gamma rays
    4. visible light

  14. The ratio by which light is slowed down by a medium is known as the medium’s

    1. electromagnetic spectrum
    2. angle of incidence
    3. reflection
    4. refractive index

  15. Which of the following has the highest pH?

    1. vinegar
    2. water
    3. baking soda
    4. cranberry juice

  16. Foods rich in carbohydrates include all of the following except

    1. potatoes
    2. pasta
    3. fruits
    4. almonds

  17. Members of an order are more alike than members of a

    1. class
    2. family
    3. genus
    4. species

  18. The number of protons in the nucleus of an atom is its

    1. atomic symbol
    2. atomic weight
    3. atomic number
    4. atomic radius

  19. The system of muscles that allows the lungs to expand and contract, drawing air in and out is the

    1. diaphragm
    2. pharynx
    3. trachea
    4. bronchioles

  20. The atom of an element with an atomic number of 17 must have

    1. 17 electrons
    2. 17 protons
    3. 17 neutrons
    4. an atomic mass of 17

  21. Because mushrooms absorb nutrients from decaying leaves, they are classified as

    1. autotrophs
    2. anaerobes
    3. saprophytes
    4. protozoans

  22. The blood vessel with the LEAST oxygenated blood is the

    1. pulmonary artery
    2. aorta
    3. pulmonary vein
    4. arterioles

  23. Saliva in the mouth begins the process of breaking down

    1. starch
    2. fat
    3. protein
    4. vitamins

  24. In which of the following kingdoms do cells lack nuclei?

    1. Fungi
    2. Monera
    3. Plantae
    4. Protista

  25. An atom that is not electrically neutral is called a(n)

    1. isotope
    2. positron
    3. ion
    4. allotrope

  26. Which of the following is an example of a metamorphic rock?

    1. granite
    2. marble
    3. limestone
    4. shale